Some investors balk at the Polkadot (CRYPTO: DOT) cryptocurrency for a few reasons. It's an unusually volatile member of a rather unstable and immature asset class. There's no shortage of rivals trying to steal the DOT currency's long-term thunder. Polkadot's app development system, which connects to many different blockchain networks, can scare people away due to its complexity.

These potential downsides are all true. However, I also see plenty of promise and potential in Polkadot, and it's one of my favorite cryptocurrencies to buy right now.

There are many reasons for my Polkadot optimism, but let's keep this review short and sweet. So here are three green flags for Polkadot's future.

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Source Fool.com